Synthesis and Structural Characterisation of [Ir4(CO)8(CH3)(m4-h3-Ph2PCCPh)(m-PPh2)] and of the Carbonylation Product [Ir4(CO)8{C(O)CH3}(m4-h3-Ph2PCCPh)(m-PPh2)]; First Evidence for the Formation of a CO Cluster Adduct before CO Insertion

Synthesis and Structural Characterisation of [Ir4(CO)8(CH3)(m4-h3-Ph2PCCPh)(m-PPh2)] and of the Carbonylation Product [Ir4(CO)8{C(O)CH3}(m4-h3-Ph2PCCPh)(m-PPh2)]; First Evidence for the Formation of a CO Cluster Adduct before CO Insertion

Deprotonation of [(mu-H)Ir4(CO)10(mu-PPh2)], 1, gives [Ir4(CO)10(mu-PPh2)]- that reacts with Ph2PCCPh and CH3I to afford [Ir4(CO)8(CH3)(mu4-eta³-Ph2PCCPh)(mu-PPh2)], 2 (34%), besides [Ir4(CO)9(mu3-eta³-Ph2PC(H)CPh)(mu-PPh2)] and [(mu-H)Ir4(CO)9(Ph2PC<FONT FACE=Symbol>º</FONT>CPh)(mu-PPh2...

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Bibliographic Details
Main Authors: Braga Dario, Fujiwara Fred Y., Grepioni Fabrizia, Pereira Regina M.S., Vargas Maria D.
Format: Article
Language:English
Published: Sociedade Brasileira de Química 1999-01-01
Series:Journal of the Brazilian Chemical Society
Subjects:
migratory insertion
iridium carbonyl clusters
alkyl clusters
carbonylation
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000100007

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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50531999000100007

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